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# Squishy Circuits for Kids

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This slide show holds resources I use to help elementary students build electrical circuits. Squishy Circuits are built with Play-Doh or homemade dough. Simple components are used: 6-volt battery packs, LEDs, buzzers, fans, conductive/nonconductive dough.

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### Squishy Circuits for Kids

1. 1. Squishy Circuits learn to build electrical circuits Created by Elisabeth Anderson, Updated March 2019
2. 2. Introduction
3. 3. Squishy Circuits Guidelines ● Wash your hands before using dough ● Table surface should be clean (Miss Anderson has washed them) ● Dyed doughs are conductive / non dyed doughs are insulating ● Use only the 4 pack of AA batteries with Squishy Circuits (6 volts) ● Keep materials off the carpet ● Gently push doughs together but do not mix the colors together ● Return doughs to their plastic containers when done ● Share & Get along
4. 4. Goals Understand or create the following ● a closed circuit; open circuit; short circuit ● battery types and their voltage ● use a volt meter ● the anatomy of an LED & types ○ single color: purple, red, blue, green, yellow, orange ○ bipolar: red/green, green/blue, red/blue ○ color changing (rainbow) ● what it takes to burn up an LED/motor/fan/buzzer= too much voltage ● polarity ● electrode ● electrons ● electrical flow ● resistance ● conductivity ● insulating
5. 5. Introduction Anodes
6. 6. Circuit Basics
7. 7. http://en.wikipedia.org/wiki/Light-emitting_diode Anatomy of LEDs http://squishycircuitsstore.com/LEDs.html
8. 8. How do LEDs work? Click the vids.
9. 9. The Electrical Circuit
10. 10. Types of Circuits Electricity takes the path of least resistance, least resistance can be a shortcut/short cicuit.
11. 11. Voltage, Current and Resistance Voltage = Current x Resistance Click here to reach the electricity games.
12. 12. Squishy Battery About Series and Parallel circuits
13. 13. Make these Electrical Circuits by making a Squishy battery. The LED burns brightly. The LEDs burn less brightly. The LED burns dimly.
14. 14. Series Circuit & Parallel Circuits
15. 15. Squishy Battery Points Each electrode has a different affinity (likeness) for electrons Electrodes = galvanized nail + copper wire Each dough slab = cell Length of dough battery determines volts It won’t power much more than an LED Red LED works best
16. 16. Squishy Animal
17. 17. More Squishy Things
18. 18. Motors
19. 19. LED versus a Bulb
20. 20. RGB LED controller
21. 21. Squishy Speaker
22. 22. Squishy Battery with Arduino & Breadboard